Finding the Fourth Proportional to 10,091.47, 13,924.57 and 5,615.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.47 : 13,924.57 = 5,615.11 : x
2. Step 2: Convert to fraction form
   10,091.47/13,924.57 = 5,615.11/x
3. Step 3: Cross multiply
   10,091.47x = 13,924.57 × 5,615.11
4. Step 4: Simplify right side
   10,091.47x = 78,187,992.25
5. Step 5: Solve for x
   x = 78,187,992.25/10,091.47
6. Step 6: Final answer
   x = 7,747.93